The atomic number of an atom is the number of

How has the scientific community addressed the safety of chemicals? a. chemicals are repeatedly tested, even those that have existed for a long time. b. existing chemicals are tested if they have never been tested before. c. chemicals are tested if they are suspected to have caused a problem. d. only new chemicals are tested.

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?

Explain what happens at the saturation point when adding salt to water at room temperature.